@book{9050,
	author = {Bhattacharyya, Gouri K., and Johnson, Richard A.},
	title = {Statistical concepts and methods /},
	publisher = {John Wiley,},
	year = {c1977.},
	series = {Wiley series in probability and mathematical statistics},
	address = {New York :},
	url = {http://www.loc.gov/catdir/bios/wiley041/76053783.html}
}